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2017 ; 14
(3
): 3545-3551
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Luteolin reduces migration of human glioblastoma cell lines via inhibition of the
p-IGF-1R/PI3K/AKT/mTOR signaling pathway
#MMPMID28927111
Wang Q
; Wang H
; Jia Y
; Ding H
; Zhang L
; Pan H
Oncol Lett
2017[Sep]; 14
(3
): 3545-3551
PMID28927111
show ga
Luteolin (3',4',5,7-tetrahydroxyflavone) is a common dietary flavonoid, which has
been demonstrated to exert anticancer effects in multiple cancer models. However,
the detailed mechanisms underlying the inhibitory effect of luteolin on
glioblastoma cell metastasis remain poorly understood. The present study assessed
the effects of luteolin in the U251MG and U87MG human glioblastoma cell lines.
Luteolin treatment significantly inhibited glioblastoma cell migration, and this
effect was associated with downregulated matrix metalloproteinase (MMP)-2, MMP-9
and upregulated tissue inhibitor of metalloproteinase (TIMP)-1 and TIMP-2. In
addition, luteolin also inhibited the epithelial-mesenchymal
transition-associated phenotype. Furthermore, the phosphorylated insulin-like
growth factor-1 receptor/phosphoinositide 3 kinase/protein kinase B/mammalian
target of rapamycin (p-IGF-1R/PI3K/AKT/mTOR) signaling pathway was demonstrated
to participate in these processes. The results of the present study demonstrated
that the flavonoid luteolin reduced the migration of glioblastoma cells by
altering p-IGF-1R/PI3K/AKT/mTOR activation, and may have potential applications
for chemoprevention in a clinical setting.